94v0 circuit board for inverter air conditioning control system

1. The basic working principle of inverter air conditioner

Inverter air conditioner is mainly to change the condition that the compressor is operated at a constant 50Hz frequency and its output power is constant. The frequency conversion controller adjusts the frequency of the output compressor power supply according to the change of the environmental conditions, so that the rotation speed of the compressor is changed, so that the power of the compressor is adjustable.

2. Introduction of the composition of the inverter air conditioner electronic control system

The electronic control system of the inverter air conditioner is mainly composed of an indoor main control board, an outdoor main control board and a compressor. The internal and external machines are connected by firing line, null line, ground line and communication line.

3. Indoor display panel

The indoor computer board of the inverter air conditioner is generally the same as the computer board of the ordinary air conditioner indoor unit, and only one N-line communication circuit is added.

4. Outdoor module board function

Receive indoor communication, comprehensive analysis of indoor ambient temperature, indoor setting temperature, outdoor ambient temperature and other factors, control the compressor by frequency control.

Collect system parameters such as exhaust, tube temperature, voltage, current, compressor status, determine system parameters and other system parameters, and judge whether the system is within the allowed working conditions and whether an abnormality occurs.